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CP system automation is looking more cost effective. M.V. Goloby. Pipeline Gas Ind., June 1998, 81(6), 45--46.

Declining costs for computing power and changes in wireless data communications are described as the main reasons for the increasing automation of pipeline cathodic protection (CP) networks. Four functions of a CP rectifier that can be automated are listed. Cost estimates for rectifier readings are tabulated for distances of 10 to 400 miles. Cost savings achieved by automating CP systems are discussed with reference to data collection and rectifier shutdowns. Risk management is also reviewed. The latter involves more effective management of maintenance and rehabilitation by matching resources to areas of greatest risk.
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